■ ■
■ ■
■ ■
■ ■
■ ■
Step 1 – Check the measurements of the opening.
Step 2 – Check the measurements of the penetrating items
Step 3 – Cross check-in UL directory – if the dimensions of opening
and penetrants are the same as in any of the ULs.
For a simpler selection, one can use the UL Submittal Generator as
shown below.
Step 4 – Cross check-in UL directory – if the dimensions of opening
and penetrants are the same as in any of the ULs.
For a simpler selection, one can use the Firestop Submittal
Generator as shown below.
(Fig 3.9)
■ ■ In case the respective UL is not available, an engineering judgement
■ ■ An Engineering Judgement form must be filled and sent to the
must be prepared by the firestop vendor based on site conditions.
engineering judgement expert.
Note that an Engineering Judgement must be prepared only by
a trained and authorized person of the firestop manufacturer/fire
protection engineer/third party labs.